subnet.im

AS33717HiNet (Chunghwa Telecom)

United StatesRegistryARIN

As of 28th September 2026, AS33717 (HiNet (Chunghwa Telecom)), a network registered in the United States with ARIN, originates 21 IPv4 prefixes covering 5.4k addresses. By IPv4 address space that makes it the 15,036th-largest of the 79,544 networks we see originating IPv4, and the 4,272nd-largest of 18,428 in the United States. It is seen behind 7 upstream networks, most often AS1299 (Arelion (fka. Telia Carrier)) and AS9505 (Taiwan Internet Gateway), and in front of 1 downstream network. 71% of its announcements have a valid RPKI ROA, and none are RPKI-invalid. 100% of its routes reach at least 90% of full-feed peers.

At a glance

IPv4 prefixes

21

IPv6 prefixes

0

IPv4 addresses

5.4k

IPv6 /64s

0

Upstream graph

The networks AS33717 is seen behind, one and two hops out, drawn from real AS paths.

AS33717Toward the internet core
Upstream graph for AS33717: 10 neighbouring networks observed beyond it across 2 levels. The same networks are listed in the tables below.AS33717HiNet (Chunghwa T…This networkAS174Cogent Communicat…AS701Verizon BusinessAS1299Arelion (fka. Tel…AS9505Taiwan Internet G…AS12179Unitas GlobalAS151326DCConnect Communi…AS3356Lumen (Level 3)AS8888xTom Pty LtdAS13030Init7 (Switzerlan…AS1828PacketFabric / Un…

Networks observed one and two hops upstream of AS33717 in real AS paths. A thicker line means more vantage points saw that adjacency, so weight tracks how well attested it is — not how much traffic it carries. Adjacency is an observation; whether it is a transit purchase or a settlement-free peering is an inference, and is labelled as one wherever we show it.

Neighbouring networks

16

adjacent networks

Upstreams
744%
Peers
850%
Downstreams
16%

Networks carrying this one's traffic toward the rest of the internet.

Upstreams of AS33717
NetworkCountryRelationshipPathsVantage pts
AS1299Arelion (fka. Telia Carrier)SEPeer79682
AS9505Taiwan Internet GatewayTWPeer33482
AS701Verizon BusinessUSPeer32882
AS174Cogent Communications, LLCUSPeer9081
AS12179Unitas GlobalUSPeer8282
AS13791Unitas GlobalUSPeer8282
AS3561Lumen (ex. Savvis)USPeer1010

Prefixes

The largest blocks AS33717 originates, widest first.

Largest prefixes originated by AS33717
PrefixAddressesVisibility
64.41.218.0/2425682/82
64.95.220.0/2425682/82
65.202.140.0/2425682/82
65.206.76.0/2425682/82
66.150.3.0/2425682/82
66.171.114.0/2425682/82
66.171.115.0/2425682/82
66.171.118.0/2425682/82
66.171.119.0/2425682/82
66.171.120.0/2425682/82

Routing health

How AS33717's own announcements validate against RPKI and how far they propagate. The same measures for the whole routing table are on the routing table in numbers.

RPKI origin validation

  • Valid71.4%15
  • Invalid0.0%0
  • No ROA28.6%6

Propagation

  • Globally propagated90% of full-feed peers or more100.0%21
  • Partially propagated40% to 90%0.0%0
  • Seen by few peersUnder 40%0.0%0

Prefix sizes

IPv4 — 21 prefixes

Recent changes

Announcements that started or stopped since 29th Aug 2026.

  • Withdrawn208.70.200.0/2421st Sept 2026

Routing data derived from RouteViews MRT archives, BGPKIT relationship inference and public registry data.